CN111483929B

CN111483929B - Small crane capable of changing hook shape

Info

Publication number: CN111483929B
Application number: CN202010419024.6A
Authority: CN
Inventors: 王中磊; 于瑞; 孙海波
Original assignee: Changzhou Vocational Institute of Engineering
Current assignee: Changzhou Vocational Institute of Engineering
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2024-10-08
Anticipated expiration: 2040-05-18
Also published as: CN111483929A

Abstract

The invention discloses a small crane capable of changing the shape of a lifting hook, which comprises a bottom plate, a stand column, a mounting plate, universal wheels, an anti-slip pad, a stand column and a supporting rod, wherein the universal wheels are arranged at the bottom of the bottom plate, an object is fixed in the middle of the bottom plate, the stand column is arranged on the upper surface of the object, a sleeve plate is nested outside the stand column, one end of the supporting rod is fixed on the outer wall of the sleeve plate, the mounting plate is fixed at the top of the stand column, the upper surface of the mounting plate is provided with a first rotating shaft, the outer side of the first rotating shaft is connected with a movable rod, a second rotating shaft is arranged at the end of the movable rod, a second connecting shaft is connected with the middle position of a second servo motor, a toothed plate is connected with the outer side of the second connecting shaft, a fixed block is fixed at the bottom of the toothed plate, and a lifting hook body is arranged below the fixed block.

Description

Small crane capable of changing hook shape

Technical Field

The invention relates to the technical field of cranes, in particular to a small crane capable of changing the shape of a lifting hook.

Background

The small crane is mechanical lifting equipment, the small crane needs to be installed and fixed with the ground before being used, the small crane can play a role in lifting cargoes after being fixed, the condition that the installation is unstable due to large gravity of cargoes is avoided, the objects are lifted through the small crane, the difficulty of carrying the objects is reduced, the manpower is reduced, the operation difficulty is reduced, the small crane is widely applied to construction sites, industrial and mining enterprises, stations, wharfs, electric power, postal service, urban construction, gardens, paving bridges and other fields, and problems exist in the existing design: 1. in the using process of the device, the shape of the lifting hook is inconvenient to adjust, and the cargoes in different shapes are difficult to lift, so that the using limitation of the device is increased; 2. the device is relatively poor with ground installation's stability in the use, and the condition of collapsing appears easily when using, and the potential safety hazard of lifting hook is great. Aiming at the problems, innovative design is required on the basis of the original small crane.

Disclosure of Invention

In order to solve the problems, the invention provides a small crane capable of changing the shape of a lifting hook, so as to solve the problems that the prior small crane is inconvenient to adjust the shape of the lifting hook, and the stability of installation and installation is poor when the lifting hook is used, and the normal use of a device is affected.

In order to achieve the technical purpose and the technical effect, the invention is realized by the following technical scheme: the utility model provides a can change small-size hoist of lifting hook form, comprises a base plate, the stand, the mounting panel, the universal wheel is installed to the bottom of bottom plate, and the intermediate position of bottom plate is fixed with puts the article, and be welded connection between article and the bottom plate, the inside of putting the article is provided with first gear, and the end department of first gear is connected with the knob, the outside of first gear is connected with the second gear, and be swing joint between second gear and the first gear, and the intermediate position of second gear is fixed with first connecting axle, the third gear is installed to the bottom of first connecting axle, and the outside of third gear is connected with the fourth gear, first spout has been seted up to the bottom of fourth gear, and the inside of first spout runs through and has first gyro wheel, the inside of fourth gear runs through the lead screw, and the bottom of lead screw is connected with the slipmat, and be swing joint between lead screw and the fourth gear, and the outside of lead screw is connected with the gag lever post, the stand is installed in the upper surface of article, and the outside of stand has the sleeve plate, and the outer wall of sleeve plate is fixed in the one end of bracing piece, the other end of second gear is fixed with the second pivot, the second pivot is provided with the second pivot, the right side of the second pivot is provided with the second pivot, the top of the second pivot is connected with the second pivot, the top of the second pivot is provided with the second pivot, the movable mounting panel is connected with the second pivot, the top of the second pivot is provided with the second pivot, the top of the second pivot, the top plate is connected with the top of the second pivot, the top has the top of the top has the top handle, the draw-in groove has been seted up to the inside of pinion rack, and the internally mounted of draw-in groove has the stopper, and the bottom of pinion rack is fixed with the fixed block, and is welding assembly between fixed block and the pinion rack to the below of fixed block is provided with the lifting hook body, and the end department of mounting panel installs the third pivot, and the outside of third pivot is connected with telescopic cylinder's one end, and telescopic cylinder's the other end is connected with the lower surface of movable rod.

Further, the second gear and the third gear are coaxially connected, and the second gear is meshed with the first gear.

Further, the fourth gears are distributed on the outer side of the third gear at equal intervals, and the side of the fourth gears is tightly attached to the end of the third gear.

Further, a rotary installation structure is formed between the fourth gear and the first roller through a first chute, and the center of the first chute is overlapped with the center of the fourth gear.

Further, a lifting installation structure is formed between the screw rod and the bottom plate through a limiting rod, and the screw rod is in threaded connection with the fourth gear.

Further, the anti-skid pad and the screw rod are integrally arranged, and the bottom of the anti-skid pad and the bottom of the universal wheel are arranged on the same horizontal plane.

Further, a rotary mounting structure is formed between the mounting plate and the object through the stand columns, and the stand columns are symmetrically arranged relative to the axis of the sleeve plate.

Further, a rotary installation structure is formed between the movable rod and the installation plate through a first rotating shaft, and the movable rod and the chain are arranged in parallel.

Further, the toothed plate is symmetrically arranged with respect to the axis of the second connecting shaft by 2, the toothed plate is in meshed connection with the second connecting shaft, and the toothed plate is in clamping connection with the object placing plate.

The beneficial effects of the invention are as follows:

Can change the small-size hoist of lifting hook form, be convenient for adjust the form of lifting hook, the slipmat can improve the stability that bottom plate and ground are connected, the condition that collapses appears when can avoiding the device to use, the bracing piece can support the stand through the cover plate, thereby can improve the stability of stand installation when using, the condition of toppling over can not appear, stability with ground installation is stronger, the practicality that the device was used has been improved, lifting hook body symmetry sets up 2, can keep the lifting hook body of one end all the time can lift by crane article, and can adjust the form of lifting hook body along with the form of article, the limitation of reducing the device use, the range of application is wide.

Drawings

FIG. 1 is a schematic diagram of the overall front view of the present invention;

FIG. 2 is a schematic top view of the whole structure of the present invention;

FIG. 3 is a schematic top view of the base plate of the present invention;

FIG. 4 is a schematic diagram of a third gear and fourth gear connection structure according to the present invention;

FIG. 5 is a schematic view of a connection structure between a second connecting shaft and a toothed plate according to the present invention;

FIG. 6 is a schematic view of a connection structure between a storage plate and a toothed plate according to the present invention;

fig. 7 is a schematic diagram of a connection structure of a screw and a stop lever according to the present invention.

Wherein: 1. a bottom plate; 2. a universal wheel; 3. placing an object; 4. a first gear; 5. a knob; 6. a second gear; 7. a first connecting shaft; 8. a third gear; 9. a fourth gear; 10. a first chute; 11. a first roller; 12. a screw rod; 13. an anti-slip pad; 14. a limit rod; 15. a column; 16. a sleeve plate; 17. a support rod; 18. a second roller; 19. a slide plate; 20. a second chute; 21. a mounting plate; 22. a first rotating shaft; 23. a movable rod; 24. a second rotating shaft; 25. a chain; 26. a first servo motor; 27. a storage plate; 28. a second servo motor; 29. a second connecting shaft; 30. a toothed plate; 31. a clamping groove; 32. a limiting block; 33. a fixed block; 34. a hook body; 35. a third rotating shaft; 36. and a telescopic cylinder.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to fig. 1-7 so that the advantages and features of the present invention can be more readily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.

The utility model provides a small crane capable of changing the shape of a lifting hook, which comprises a bottom plate 1, a column 15 and a mounting plate 21, wherein the bottom of the bottom plate 1 is provided with a universal wheel 2, the middle position of the bottom plate 1 is fixedly provided with an object 3, the object 3 is in welded connection with the bottom plate 1, the inside of the object 3 is provided with a first gear 4, the end of the first gear 4 is connected with a knob 5, the outside of the first gear 4 is connected with a second gear 6, the second gear 6 is movably connected with the first gear 4, the middle position of the second gear 6 is fixedly provided with a first connecting shaft 7, the bottom of the first connecting shaft 7 is provided with a third gear 8, the outside of the third gear 8 is connected with a fourth gear 9, The bottom of the fourth gear 9 is provided with a first chute 10, the inside of the first chute 10 is penetrated with a first roller 11, the inside of the fourth gear 9 is penetrated with a screw rod 12, the bottom of the screw rod 12 is connected with a non-slip pad 13, the screw rod 12 and the fourth gear 9 are movably connected, the outer side of the screw rod 12 is connected with a limit rod 14, the upright post 15 is arranged on the upper surface of the object 3, the outer side of the upright post 15 is nested with a sleeve plate 16, the outer wall of the sleeve plate 16 is fixed at one end of a supporting rod 17, the other end of the supporting rod 17 is provided with a second roller 18, the outer side of the second roller 18 is provided with a sliding plate 19, The surface of the sliding plate 19 is reserved with a second sliding groove 20, the mounting plate 21 is fixed on the top of the upright 15, the upper surface of the mounting plate 21 is provided with a first rotating shaft 22, the outer side of the first rotating shaft 22 is connected with a movable rod 23, the end of the movable rod 23 is provided with a second rotating shaft 24, the outer side of the second rotating shaft 24 is connected with a chain 25, one end of the chain 25 is connected with a first servo motor 26, the other end of the chain 25 is provided with a storage plate 27, the outer side of the storage plate 27 is provided with a second servo motor 28, the middle position of the second servo motor 28 is connected with a second connecting shaft 29, the outer sides of the second connecting shafts 29 are symmetrically and leftwards connected with toothed plates 30 respectively, The inside of the toothed plate 30 is provided with a clamping groove 31, the inside of the clamping groove 31 is provided with a limiting block 32, the bottom of the toothed plate 30 is fixedly provided with a fixed block 33, the fixed block 33 and the toothed plate 30 are assembled in a welding way, the lower part of the fixed block 33 is provided with a lifting hook body 34, the end of the mounting plate 21 is provided with a third rotating shaft 35, the outer side of the third rotating shaft 35 is connected with one end of a telescopic cylinder 36, the other end of the telescopic cylinder 36 is connected with the lower surface of the movable rod 23, the second gear 6 is coaxially connected with the third gear 8, the second gear 6 is meshed with the first gear 4, the fourth gear 9 is distributed on the outer side of the third gear 8 at equal intervals, The side of the fourth gear 9 is tightly attached to the end of the third gear 8, a rotary mounting structure is formed between the fourth gear 9 and the first roller 11 through a first chute 10, the center of the first chute 10 coincides with the center of the fourth gear 9, a lifting mounting structure is formed between the screw rod 12 and the bottom plate 1 through a limiting rod 14, the screw rod 12 is in threaded connection with the fourth gear 9, an anti-slip pad 13 and the screw rod 12 are integrally arranged, the bottom of the anti-slip pad 13 and the bottom of the universal wheel 2 are arranged on the same horizontal plane, a rotary mounting structure is formed between the mounting plate 21 and the object 3 through a stand column 15, the stand column 15 is symmetrically arranged about the axis of the sleeve plate 16, The movable rod 23 and the mounting plate 21 form a rotary mounting structure through the first rotating shaft 22, the movable rod 23 and the chain 25 are arranged in parallel, 2 toothed plates 30 are symmetrically arranged about the axis of the second connecting shaft 29, the toothed plates 30 are in meshed connection with the second connecting shaft 29, and the toothed plates 30 are in clamping connection with the object placing plate 27.

After the device moves to a proper position, the knob 5 is manually rotated, the knob 5 can drive the first gear 4 to rotate, because the first gear 4 is meshed with the second gear 6, the second gear 6 can be driven to rotate after the first gear 4 rotates, and because the second gear 6 is coaxially connected with the third gear 8, the third gear 8 can be driven to rotate after the second gear 6 rotates, meanwhile, the third gear 8 is mutually attached to the fourth gear 9, the fourth gear 9 can rotate along with the fourth gear 9, after the fourth gear 9 rotates, the screw rod 12 can downwards move under the influence of the acting force limited by the limiting rod 14, and the anti-slip pad 13 is driven to attach to the ground, the stability of the connection between the bottom plate 1 and the ground can be improved by the anti-slip pad 13 distributed at equal angles, and the situation of collapse can be avoided when the device is used; when the lifting hook is arranged, the movable rod 23 which is obliquely arranged can be adjusted in angle through the first rotating shaft 22, when the angle of the movable rod 23 needs to be adjusted, the telescopic cylinder 36 works to upwards extrude the middle position of the movable rod 23, then the movable rod 23 can be subjected to angle change through the first rotating shaft 22, so that lifting hooks can be carried out on goods in different positions, the limitation of the device can be reduced, and as the telescopic cylinder 36 can rotate with the mounting plate 21 through the third rotating shaft 35 during working, no limited acting force can occur, meanwhile, when the device works, the mounting plate 21 can rotate with the object 3 through the upright post 15, and in the rotating process of the mounting plate 21, the supporting rod 17 can support the upright post 15 through the sleeve plate 16, so that the mounting stability of the upright post 15 during use can be improved, and no toppling situation can occur; the lifting hook body 34 symmetry has set up 2, when the article needs the lifting hook, second servo motor 28 work drives second connecting axle 29 rotation, then second connecting axle 29 can drive the pinion rack 30 that the symmetry set up and go up and down the motion, when second connecting axle 29 is driven clockwise rotation, the lifting hook body 34 of one end is driven down to remove, the lifting hook body of the other end can be driven upwards to can keep the lifting hook body of one end all the time to hoist the article, and can adjust the form of lifting hook body along with the form of article, the limitation that the reduction device used.

The foregoing description is only illustrative of the present invention and is not to be construed as limiting the scope of the invention, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present invention and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the invention.

Claims

1. The utility model provides a small crane capable of changing the shape of a lifting hook, which is characterized by comprising a base plate (1), an upright post (15) and a mounting plate (21), universal wheels (2) are mounted at the bottom of the base plate (1), an object (3) is fixedly arranged at the middle position of the base plate (1), the object (3) is in welded connection with the base plate (1), a first gear (4) is arranged in the object (3), a knob (5) is connected at the end of the first gear (4), a second gear (6) is connected to the outer side of the first gear (4), a first connecting shaft (7) is fixedly arranged at the middle position of the second gear (6), a third gear (8) is mounted at the bottom of the first connecting shaft (7), a fourth gear (9) is connected to the outer side of the third gear (8), a first sliding groove (10) is formed in the bottom of the fourth gear (9), a first roller (11) is penetrated in the first sliding groove (10), a first roller (12) is penetrated in the fourth gear (9), a screw rod (12) is penetrated between the first roller (12) and the screw rod (12) is movably connected to the bottom of the fourth gear (12), the outside of the screw rod (12) is connected with a limit rod (14), the upright post (15) is arranged on the upper surface of the object (3), a sleeve plate (16) is nested outside the upright post (15), the outer wall of the sleeve plate (16) is fixed at one end of a supporting rod (17), a second roller (18) is arranged at the other end of the supporting rod (17), a sliding plate (19) is arranged outside the second roller (18), a second sliding groove (20) is reserved on the surface of the sliding plate (19), the mounting plate (21) is fixed at the top of the upright post (15), a first rotating shaft (22) is arranged on the upper surface of the mounting plate (21), a movable rod (23) is connected to the outer side of the first rotating shaft (22), a second rotating shaft (24) is arranged at the end of the movable rod (23), a chain (25) is connected to the outer side of the second rotating shaft (24), a first servo motor (26) is connected to one end of the chain (25), a storage plate (27) is arranged at the other end of the chain (25), a second sliding groove (20) is reserved on the outer side of the storage plate (19), a second servo motor (28) is arranged on the outer side of the second servo motor (27), a second servo motor (28) is connected to the second servo motor (29) and the second servo motor (29) is connected to the inner side of the second servo motor (30), a limiting block (32) is arranged in the clamping groove (31), a fixed block (33) is fixed at the bottom of the toothed plate (30), the fixed block (33) and the toothed plate (30) are assembled in a welding way, a lifting hook body (34) is arranged below the fixed block (33), a third rotating shaft (35) is arranged at the end of the mounting plate (21), the outer side of the third rotating shaft (35) is connected with one end of a telescopic cylinder (36), and the other end of the telescopic cylinder (36) is connected with the lower surface of the movable rod (23);

The second gear (6) and the third gear (8) are coaxially connected, and the second gear (6) and the first gear (4) are in meshed connection;

the fourth gears (9) are distributed on the outer side of the third gear (8) at equal intervals, and the side of the fourth gears (9) is tightly attached to the end of the third gear (8);

A rotary installation structure is formed between the fourth gear (9) and the first roller (11) through a first chute (10), and the circle center of the first chute (10) is overlapped with the ring center of the fourth gear (9);

the screw rod (12) and the bottom plate (1) form a lifting installation structure through a limiting rod (14), and the screw rod (12) is in threaded connection with the fourth gear (9).

2. The small crane capable of changing the shape of the lifting hook according to claim 1, wherein the anti-skid pad (13) and the screw rod (12) are integrally arranged, and the bottom of the anti-skid pad (13) and the bottom of the universal wheel (2) are arranged on the same horizontal plane.

3. A small crane with changeable hook shape according to claim 1, characterized in that the mounting plate (21) and the object (3) are formed into a rotary mounting structure by means of the upright (15), and the upright (15) is arranged symmetrically with respect to the axis of the sheathing (16).

4. A small crane with changeable hook shape according to claim 1, characterized in that the movable rod (23) and the mounting plate (21) form a rotary mounting structure through the first rotary shaft (22), and the movable rod (23) and the chain (25) are arranged in parallel.

5. The small crane with the hook shape changeable according to claim 1, wherein the number of the toothed plates (30) is 2 symmetrically arranged about the axis of the second connecting shaft (29), the toothed plates (30) are in meshed connection with the second connecting shaft (29), and the toothed plates (30) are in clamping connection with the object placing plate (27).